The default file name for all versions of Microsoft Excel is called "book1"
Default file extension for MS Excel 2003 & earlier versions is .xlsDefault file extension for MS Excel 2007 & later versions is .xlsx
The typical number of worksheets for a "New file..." in Microsoft Excel has always been 3.
A default filename is a name given to a file if you do not choose your own. In Excel the first default filename used is Book1.xls and your file will be called this if you don't specify another one.
Microsoft Excel
The file extension of MS Excel is .xmls
xls
The default extension for a Microsoft PowerPoint file is .ppt
.xl is the file extension for Excel documents.
Default file format for Excel 2003: .xls Default file format for Excel 2007: .xlsx Note: You can't open lower version file format in upper version. If you want to do this then you will have to download the compatibility pack.
The default file ext for Excel 2010 default install is .xlsx as it was in 2007. 2003 was the last version with a different extension, which was .xls for workbooks.Te default file ext may be changed by going into File-> Options -> Save -> Save in this format.If there is a group policy in place, Excel will inherit the default file extension specified.
To create a database you need to name a file and add that to Microsoft excel :) hope that helps :)
It comes from Excel Spreadsheet. It is Microsoft Excel's main file format.